FixGlow Plug Replacement Cost
What owners actually paid
The shaded middle is where half of all these repairs landed: $236 – $636. The price on any one car depends on the vehicle — the table below shows the range for each.
What this repair is
Diesels don't have spark plugs — glow plugs preheat the cylinders so cold starts light off. Failed ones mean long cranking, rough running, and white smoke on cold mornings. They are usually replaced as a set, and on high-mileage engines a seized plug can turn a routine job into machine work, which is what the price spread reflects.
Glow Plug Replacement cost by vehicle
The most-repaired vehicles first. Each range is the middle half of real invoices for that vehicle; vehicles with their own page carry the full breakdown, real repair reports and a printable Fair Price Report.
| Vehicle | Typical cost | Median |
|---|---|---|
| Chevrolet Silverado 2500HD | $226 – $669 | $399 |
| Ford F-250 | $204 – $578 | $352 |
| GMC Sierra 2500HD | $237 – $660 | $415 |
| Ford F-350 | $243 – $667 | $398 |
| Chevrolet Silverado 3500HD | $248 – $712 | $436 |
| Volkswagen Jetta | $229 – $455 | $317 |
| GMC Sierra 3500HD | $205 – $627 | $345 |
| Dodge Sprinter | $278 – $630 | $410 |
Middle half of real invoices (25th–75th percentile) for that make and model, parts + labor.
What moves the price
- How many — shops usually replace a full set or bank so they age together.
- Seized plugs — a plug that breaks in the head turns a routine job into machine work.
- Module — a glow plug circuit code can be the controller, not the plugs.
Quotes near the low end usually mean one or two plugs on an accessible bank. Quotes near the high end usually mean a full set on both banks, a seized plug extracted, control module replaced.
Not sure what's wrong yet?
Start from what the car is doing. The FixDozer drill asks a few plain questions and shows which fixes that complaint usually turns out to be — with the real cost of each.
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